Are we happy ? What make us happy ? How happy are we as a nation ?

US is at the 5th place in national happiness in 08-09 Gallup poll. We should feel good about it. However, at the same time, US is at the 5th place of national highest stress. US is also at the 89th place of least worry.

What can be done to reduce stress and worry ? Some answers are in a new book Music and Human Health.